Construction of the Carretera Longitudinal del Norte (North Longitudinal Road), section 3A: Chalatenango Bypass
These works were part of the "Connectivity Project" which aimed to reduce the cost and time of journeys made from the north of El Salvador to the rest of the region and the country. It was implemented by the Millennium Challenge Compact) to help the Millennium Challenge Account reduce poverty through economic growth in the country’s northern area.
The project covered the VP13 and VP14 roadways of the Carretera Longitudinal del Norte with a total length of 10.74 km. The VP13 roadways are 8.66 km long and were entirely built on uneven and mountainous land. The works began on the current road coming from Troncal del Norte towards the capital of the department, in the outskirts of Chalatenango Stadium, before reaching the current highway to San Isidro that corresponds to the VP14 roadways. This last section involved refurbishing an existing road that was 2.08 km long and less than 6.50 wide that had no shoulders and a pavement in a poor state of repair. Works on both roads included the construction of two 3.25 m-wide lanes with 1.50 m-wide shoulders and a pavement structure with a 9 cm-thick asphalt layer on the track and 5 cm-thick on the shoulders; 20 cm gravel base (CBR 80); 20 cm gravel substrate (CBR 30); on a subgrade with a CBR of 15.
Works also included the construction of a 90 m-long main bridge over the Tamulasco River with two minor bridges spanning 40 m and 30 m long over the flood plains. Flood relief is provided with six reinforced 36"-wide concrete tubes which discharge over the current irrigation channels. In addition, a reinforced concrete triple box culvert was built over the River Guarjilita with dimensions of 7 m x 5.50 m x 35 m for each barrel. Works also included the construction of a 4.20 m x 2.80 m box and the expansion design and construction of the existing box over Quebrada Honda on VP14, which now measures 7 m x 5.50 m x 7.20 m deep. Additionally, 1260 ml of reinforced concrete sewage systems were built with diameters ranging from 30" to 72".
On top of construction works, the project also included environmental mitigation measures, horizontal and vertical signage, quality control and a set amount for social works, among which the construction of a dumping site and implementation of a drinking water system for communities bordering the works was included.
Start date: 2010
End date: 2012